Directional Valves — HyPerformance

HEP42-S39 — Vented Poppet-Type Valve
   Selection guide - similar valves.
   PDF file of this page.
   Request a quote.

HEP42-S39 Valve

SYMBOL:
HEV42-S39 Valve symbol

DESCRIPTION
A high-pressure poppet-type, screw-in, cartridge-style, spring-biased, bi-directional blocking-type
hydraulic valve with two built-in checks. When used in conjunction with a small pilot solenoid valve, the
HEP42-S39 is ideal for either high-flow double-blocking circuits or selector circuits. The integral two-
check system prevents leakage, maintaining the pilot signal regardless of the transition or the work-port
pressure changes.

OPERATION
The HEP42-S39 will allow flow from 1 to 2 or 2 to 1 only when 3 is vented to create a pressure differential
across the internal orifice which exceeds the pressure value of the bias spring. When the element is in
the neutral (closed) state, the ratio of areas 1 and 2 is 1:1, and the ratio of areas 1 or 2 to 3 is 1:2.

FEATURES
• Multiple function/application potential.
• Low pressure drop.
• All HyPerformance products are tested to the rigorous standards of the NFPA specification T2.6.1.
• All HyPerformance valves are tested at a verification level of 90% and an assurance of 99%.

RATINGS
Operating Pressure: 350 bar (5075 psi); 10% cycle life: 420 bar (6090 psi)
   Note: All HyPerformance products are tested for 900K cycles at 350 bar and 100K at 420 bar.
Fatigue Rating: 2 million cycles at 420 bar (6090 psi)
Proof Pressure: 690 bar (10000 psi)
Burst Pressure: 1380 bar (20000 psi)
Flow: 284 lpm (100 gpm)
Internal Leakage: 12 drops per minute max. at 350 bar (5075 psi)
Operating Temperature: -54° to 107°C (-65° to 225°F) with Urethane seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
   7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: HVC42-S3; See page 9.142.1_3w
Cavity Tool: HCT42-S3xx; See page 8.600.1
Seal Kit: SK42-S3x-x; See page 8.650.1

PERFORMANCE & DIMENSIONS:

HEP42-S39 Performance Dimensions

MATERIALS:

Cartridge: Weight: 1.04 kg. (2.30 lbs.);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; PPDI Urethane seals and no backup rings standard.

Ported Body: Weight: 9.03 kg.
(19.9 lbs.); H-series ductile iron standard. Rated to 345 bar (5000 psi).
See page 8.042.1_3w
  ORDERING CHART:

HEP42-S39 Ordering Chart

Selection guide - similar valves.
PDF file of this page. Request a quote.